Method for recycling side product in S-abscisic acid production

Abstract

The invention discloses a method for recycling a side product in S-abscisic acid production. The recycling method comprises the following steps: (1) filtering a fermentation liquid containing S-abscisic acid with a plate frame to obtain a first side product and filtrate, and drying, smashing and compounding the first accessory substance to obtain a first byproduct; (2) performing film filtration and acid precipitation on the filtrate obtained in the step (1) to obtain a second accessory substance and an acid precipitation substance, and concentrating and compounding the second accessory substance to obtain a second byproduct; (3) performing extraction, concentration crystallization and recrystallization on the acid precipitation product obtained in the step (2) to obtain a third accessory substance and an S-abscisic acid crystal, and performing back extraction, drying and compounding on the third accessory substance to obtain a third byproduct. By adopting the method, a production line is enriched, the economical benefit is increased, emission of relatively expressive S-abscisic acid is avoided, pollution and waste are reduced, energy is saved, and emission is reduced.

Description

technical field [0001] The invention relates to the technical field of S-induced antibiotic production technology, in particular to a method for recycling by-products in the production of S-induced antibiotic. Background technique [0002] S-abscisic acid (natural abscisic acid), together with auxin, ethylene, gibberellin, and cytokinin, is listed as the five natural growth regulators of plants. Reverse gene, induces and activates the anti-stress immune system in plants, improves the plant's own resistance to cold, drought, pests, and salinity, and can reduce the use of chemical pesticides by applying S-absorbin, which can improve the quality of agricultural products, etc. It has important physiological activity and application value in many aspects. [0003] At present, there are three main methods for the preparation of S-antibodies: direct extraction, chemical synthesis, and biological fermentation. The direct extraction method refers to direct extraction from plants, b...

AI Technical Summary

Problems solved by technology

The direct extraction method refers to direct extraction from plants, but due to the low content in the plant body, the production method has a low yield and a small scale; the chemical synthesis method prepares S-antibodies, and its synthetic purity is low, because The products obtained by chemical synthesis are non-natural abscisic acid and natural abscisic acid (S-abscisic acid), only natural abscisic acid (S-abscisic acid) has the above physiological activities, and the production cost of chemical synthesis is extremely high, so the current Only Japan, the United States and other developed countries are used in large-scale agricultural production; the S-abscisin produced by the biological fermentation method has a high yield and will not produce unnatural abscisic acid. It will produce a large number of by-products, which also contain a certain amount of S-inducer, which are all discharged and wasted. The cost is high, the pollution is serious, and it is not suitable for industrial production.